in think i know what you are talking about. there was a thread about a year ago about the smell of pork. a member said that pork smelled like the feces that they wallow in. now, feces shouldn't have come in contact in any way with the meat, therefore, i doubt it "flavored" it. but i have noticed that occasionally, pork that i made at home had a slightly gamey or unpleasent smell to it, even after cooking thoroughly. sort of like the smell of a dead carcass, but not nearly as bad. so i think it was just the natural gamey odor of an otherwise good piece of pork. it may have been was an anomaly (just one bad pig in the sty), or possibly, from the diet the pigs ate just before butchering.
the only way that i know how to get rid of unwanted smells or strong odors/flavors of meat or fish is to soak it in either whole or butter milk overnight. this works well with shark and bluefish, so it might work with pork. i doubt there's anything you can do after it is cooked, except to spice the heck out of it. lots of hot sauce and peppers should keep your schnozz from detecting it.

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The next time someone asks what you did this past weekend, squint really hard and say, "Why, what did you hear?"

In spite of the fact that I'm a smoker, I have a very sensitive sniffer. I know exactly what you are talking about. I especially notice it the next day when the pork is reheated. I know the scent is a little funky, but that's just the way pork smells...especially a large piece of meat. That's why a lot of our leftover pork ends up being sliced thinly and cooked with Maull's BBQ Sauce for sandwiches. You can use the sauce of your choice, but that one makes awfully good "BBQ's".
I find that all meat kinda stinks, really. Have you ever smelled a box of chickens? Or ground beef that's been in the fridge for a couple of days?
It hasn't stopped me from being a carnivore, though.

for sure if reheated pork roast starts to be gamey, and it can as it dries out for whatever reason, turn it into a meat pot pie, or a great bbq sliced or pulled with a favorite sauce. Also good for a fried rice stir fry ... which was invented to use leftovers btw!